half of hospitals are letting patients jump nhs queues for cataract surgery if they pay for it themselves .
some are charging up to a ` shameful ' £ 2,700 for one eye .
cataract treatment is being rationed in england to save money , even though the nhs recently announced it would fund weight-loss surgery for 15,000 obese adults every year at a cost of £ 6,000 each .
yesterday the mail revealed how millions was being wasted on prescriptions for suncream and toothpaste that